From b022ebe9125384c636f71a366bbb58803ac0025b Mon Sep 17 00:00:00 2001
From: Jaime Passos <lazymyuutsu@gmail.com>
Date: Tue, 24 Sep 2019 19:44:30 -0300
Subject: [PATCH] better crosshair

---
 src/am_map.c | 37 ++++++++++++++++++++++++++-----------
 1 file changed, 26 insertions(+), 11 deletions(-)

diff --git a/src/am_map.c b/src/am_map.c
index d5000b267..ff4d97da5 100644
--- a/src/am_map.c
+++ b/src/am_map.c
@@ -62,7 +62,7 @@ static const UINT8 NOCLIMBYELLOWS     = (11*16);
 #define NOCLIMBCDWALLCOLORS   NOCLIMBYELLOWS
 #define THINGCOLORS           GREENS
 #define GRIDCOLORS            (GRAYS + GRAYSRANGE/2)
-#define XHAIRCOLORS           GRAYS
+#define XHAIRCOLORS           DWHITE
 
 // controls
 #define AM_PANUPKEY     KEY_UPARROW
@@ -137,16 +137,14 @@ static const mline_t player_arrow[] = {
 #undef R
 #define NUMPLYRLINES (sizeof (player_arrow)/sizeof (mline_t))
 
-#if 0
 #define R (FRACUNIT)
-static mline_t triangle_guy[] = {
-	{ { (fixed_t)-.867f*R, (fixed_t)-.5f*R }, { (fixed_t) .867f*R, (fixed_t)-.5f*R } },
-	{ { (fixed_t) .867f*R, (fixed_t)-.5f*R }, { (fixed_t)       0, (fixed_t)     R } },
-	{ { (fixed_t)       0, (fixed_t)     R }, { (fixed_t)-.867f*R, (fixed_t)-.5f*R } }
+static const mline_t cross_mark[] =
+{
+	{ { -R, 0 }, { R, 0} },
+	{ { 0, -R }, { 0, R } },
 };
 #undef R
-#define NUMTRIANGLEGUYLINES (sizeof (triangle_guy)/sizeof (mline_t))
-#endif
+#define NUMCROSSMARKLINES (sizeof(cross_mark)/sizeof(mline_t))
 
 #define R (FRACUNIT)
 static const mline_t thintriangle_guy[] = {
@@ -1074,13 +1072,30 @@ static inline void AM_drawThings(UINT8 colors)
 	}
 }
 
-/** Draws the crosshair, actually just a dot in software mode.
+/** Draws the crosshair.
   *
   * \param color Color for the crosshair.
   */
 static inline void AM_drawCrosshair(UINT8 color)
 {
-	V_DrawFill(f_w/2 + f_x, f_h/2 + f_y, 1, 1, color|V_NOSCALESTART);
+	const fixed_t scale = 4<<FRACBITS;
+	size_t i;
+	fline_t fl;
+
+	for (i = 0; i < NUMCROSSMARKLINES; i++)
+	{
+		fl.a.x = FixedMul(cross_mark[i].a.x, scale) >> FRACBITS;
+		fl.a.y = FixedMul(cross_mark[i].a.y, scale) >> FRACBITS;
+		fl.b.x = FixedMul(cross_mark[i].b.x, scale) >> FRACBITS;
+		fl.b.y = FixedMul(cross_mark[i].b.y, scale) >> FRACBITS;
+
+		fl.a.x += f_x + (f_w / 2);
+		fl.a.y += f_y + (f_h / 2);
+		fl.b.x += f_x + (f_w / 2);
+		fl.b.y += f_y + (f_h / 2);
+
+		AM_drawFline(&fl, color);
+	}
 }
 
 /** Draws the automap.
@@ -1096,5 +1111,5 @@ void AM_Drawer(void)
 	AM_drawPlayers();
 	AM_drawThings(THINGCOLORS);
 
-	AM_drawCrosshair(XHAIRCOLORS);
+	if (!followplayer) AM_drawCrosshair(XHAIRCOLORS);
 }